Effect of Phosphorus and Potassium Fertilizers Application on Soil Chemical Characteristics and Their Accumulation in Potato Plant Tissues

Table 5

Phosphorus and potassium concentration levels of dried potato leaves and tuber tissues.

Treatments	Phosphorus content (ppm)		Potassium content (cmol kg^−1)
	Leaf	Tuber	Leaf	Tuber
P2O5 (kg ha^−1)
0	0.04^f	0.06^f	2.80	2.95^b
46	0.08^e	0.13^e	2.72	3.19^a
92	0.18^d	0.22^d	2.86	3.19^a
138	0.22^c	0.24^c	2.81	3.25^a
184	0.26^b	0.29^b	2.71	3.33^a
230	0.30^a	0.34^a	2.71	3.27^a
F test			Ns
LSD (5%)	0.01	0.013	0.14	0.15
K2O (kg ha^−1)
0	0.18	0.22^a	1.79^c	2.14^d
100	0.18	0.22^a	2.40^b	2.61^c
200	0.18	0.21^ab	3.40^a	3.68^b
300	0.18	0.21^b	3.49^a	4.35^a
F test	Ns
LSD (5%)	0.012	0.01	0.1136	0.1247
CV (%)	9.90	6.97	6.12	5.82

Means of the same main effect followed by the same letter or with no superscript letter within a column are not significantly different at 5% level of significance;  = significance at probability level;  = significance at probability level; Ns = nonsignificant at probability level; LSD = least significant difference; and CV = coefficient of variation.